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Finding the Fourth Proportional to 59,242.80, 88,720.20 and 31,479.60

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Solution

The fourth proportional to 59,242.80, 88,720.20 and 31,479.60 is: 47,142.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,242.80 : 88,720.20 = 31,479.60 : x
  2. Step 2: Convert to fraction form
    59,242.80/88,720.20 = 31,479.60/x
  3. Step 3: Cross multiply
    59,242.80x = 88,720.20 × 31,479.60
  4. Step 4: Simplify right side
    59,242.80x = 2,792,876,407.92
  5. Step 5: Solve for x
    x = 2,792,876,407.92/59,242.80
  6. Step 6: Final answer
    x = 47,142.88

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